protect against NULL dump_folder[] value in ReadAnimatedImage()

BUG=webp:355

Change-Id: If449ed4b0bd7a11ce7c646eabe2a7b58a1abf009
This commit is contained in:
Pascal Massimino 2017-08-28 15:24:57 +02:00
parent 5bd40066cc
commit 23bfc652fe

View File

@ -152,6 +152,8 @@ static int DumpFrame(const char filename[], const char dump_folder[],
FILE* f = NULL;
const char* row;
if (dump_folder == NULL) dump_folder = ".";
base_name = strrchr(filename, '/');
base_name = (base_name == NULL) ? filename : base_name + 1;
max_len = strlen(dump_folder) + 1 + strlen(base_name)